Transcoding method for switching between selectable mode voice encoder and an enhanced variable rate CODEC
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United States of America Patent
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Issued Date -
Aug 24, 2006
app pub date -
Feb 23, 2005
filing date -
Feb 23, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An apparatus comprising an encoder circuit and a transcoder circuit. The encoder circuit may be configured to generate a bitstream comprising a series of packets in response to a speech input signal. The transcoder circuit may be configured to generate an intermediate bitstream in response to the bitstream. The transcoder (a) implements (i) a first encoding type comprising a selectable mode voice (SMV) encoding or (ii) a second encoding type comprising an enhanced variable rate (EVR) encoding in response to a type of data in each of the packets of the bitstream and (b) the first or second encoding type is selected on a per packet basis.
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